In the chemical formula 3nh3, how many atoms of hydrogen (h) are there? 3 6 9 11
2 answers:
<u>Answer:</u> There are 9 hydrogen atoms in the given chemical formula.
<u>Explanation:</u>
We are given a chemical formula of ammonia which is
This molecule is formed by the combination of hydrogen and nitrogen atoms.
In 1 mole of ammonia, 1 atom of nitrogen is there and 3 atoms of hydrogen is there.
We are given:
Moles of ammonia = 3
So, 3 atoms of nitrogen is there and 9 atoms of hydrogen is there.
Hence, there are 9 hydrogen atoms in the given chemical formula.
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Explanation:
10) From the options provided for this question, gamma particle is the most energetic. Recall that gamma rays are high energy electromagnetic radiation which are capable of causing a high degree of ionization in matter.
11) The bombardment of U-235 with neutrons leads to the reaction;
Hence
a = 92, b= 95, c= 53
12) In positron emission, a proton is transformed into a neutron. The mass number of the daughter nucleus is the same as its parent but the atomic number decreases by 1.
Hence;